Come reagire in caso mancasse la variabile.

[bruno-]

<?
$files1 = scandir('img/');
shuffle($files1);


if ($files1[1] == "." or $files1[1] == ".."){unset($files1[1]);}
if ($files1[2] == "." or $files1[2] == ".."){unset($files1[2]);}
if ($files1[3] == "." or $files1[3] == ".."){unset($files1[3]);}
if ($files1[4] == "." or $files1[4] == ".."){unset($files1[4]);}
if ($files1[5] == "." or $files1[5] == ".."){unset($files1[5]);}
if ($files1[6] == "." or $files1[6] == ".."){unset($files1[6]);}
if ($files1[7] == "." or $files1[7] == ".."){unset($files1[7]);}
if ($files1[8] == "." or $files1[8] == ".."){unset($files1[8]);}
if ($files1[9] == "." or $files1[9] == ".."){unset($files1[9]);}



echo $files1[2];
echo '<br>
';
echo $files1[3];
echo '<br>
';
echo $files1[4];
echo '<br>
';
echo $files1[5];
echo '<br>
';
echo $files1[6];
echo '<br>
';
echo $files1[7];
echo '<br>
';
echo $files1[8];
echo '<br>
';
echo $files1[9];
echo '<br>
';
echo $files1[1];
?>

!isset?
E poi?

Mi serve una soluzione elegante.